Looking Keys [+]; Get Graphics Font [+] - Husky MP2500 Manual

Description

Looking keys [+]

Entry
Exit
Description

Get graphics font [+]

Entry
Chapter 21: INT 10H, Screen Handler
Moves the LCD screen over the virtual screen to
position its top left corner at the specified row and
column, with row 0, column 0 being the top left corner
of the virtual screen and row 25, column 80 being the
bottom right corner.
(These row and column co-ordinates are unaffected by
changing the text font (size); they are always based on
the default 7x7 character matrix.)
Note that this has no effect on the screen memory, so
it is entirely transparent to applications.
If the LCD is split (function 66H), this function moves
that part of the LCD which is displaying the cursor; the
other part of the LCD is unaffected.
AH=76H
AL=action
Returns nothing
Moves the LCD across the virtual screen as if the user
had pressed one of the looking keys. The action is
dictated by AL, as follows:
AL Effect
0 home the window
1 move up 1
2 move down 1
3 move left 1
4 move right 1
5 flip window to other side of virtual screen
AH=77H
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